Improvement in machines for spinning wool



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N.PETERB, PHUTCLLITHOGHAPHER. WASHINGTON. D. C.

UNITED STAT-ns EDWARD E. KILBOURN., OF NEW BRUNSWICK, NEW JERSEY.

IMPROVEMENT IN MACHINES FOR SPINNING WOOL.

Speciiication forming part of `Letters Patent No. 103,052, dated May 27, 1870; antedated May 12, 1870.

To all whom ft/may concern! Be it known that I, EDWARD E. KILBOURN,

. of New Brunswick, in the countyof Middle- Lsex and State of New Jersey, have invented certain new and useful Improvements in Machines for Spinning Wool, the said improvements being applicable also to machines for spinning cotton; and that the following is av y full, clear, and exact description of my invention.

My invention relates tolthat class of spinning-machines in which rovings are spun into yarns by intermittent drawing, twisting, and

winding.

Those machines of this class which are constructed to have the carriage holding the spini dles operated by hand are generally known as jacks 7 and such others as have the carriage and its appurtenances operated automatically by power are called either self-acting jacks 7 or self-acting mules. Self-acting jacks, as constructed previous to this invention, are costly machines, and have been brought into f use but lately. Consequently there is a very large number o f hand-jacks now in use, which are as yet in good working order; and the main object of the invention which constitutes the subject-matter of this patent is to enable y such hand-jacks to be transformed into selfacting jacks at a small expense, as compared with the cost of the self-acting jacxs or mules thus far introduced.

, Theimprovements about to be described may also be employed with great advantage in the construction of new self-acting jacks, because by their use such new machines can, it is believed, be manufactured at a less cost than those hitherto introduced.

rlhe improvements constituting the invention consist of certain combinations of mechanical instrumentalities, by which combinations I the automatic stopping of said movement;

second, the movement ofthe spindle-carriage, duringthe stretching ofthe rovings, witha speed which is progressively reduced, and the automatic start-ing and stopping of said movement; third, the automatic arrest of the carriage when it has moved a certain distance outward and the rovings have thereby been stretched to the desired extent; fourth, the movement of the spindle-carriage inward during the hard twisting of the yarns, and the automatic starting and stopping of said inward movement; fth, the automatic placing of the spindle-carriage under the control of the mechanism for moving it during the winding of the yarns; sixth, the variation of the twistingof the yarns, so as to produce yarns of the required hardness; seventh, the automatic turning of the spindles backward for the purpose of backing oft' or unwinding the yarns extending to their points; eighth, the movement of the spindles at the desired speed during the winding of the yarns, and the starting and arrest of the said movement without interference with the mechanism for turning the spindles backward; ninth,thevariation ofthe speed of the mechanism for driving the spindles during winding; tenth, thereadjustment of the winding mechanism to the position it is to ocv cupy during spinning, after it has been moved therefrom during the backward movement of the spindles; eleventh, the automatic distribution of the yarns upon the bobbins during winding; twelfth, the automatic starting and stopping of the mechanism for distributing the yarns upon the bobbins during winding; thirteenth, the automatic shifting of the distribution ofthe yarns progressively toward the points ofthebobbins; fourteenth, the automatic increase of the range of distribution of the yarns in the vicinity of the heads of the bobbins; fifteenth, the automatic stoppage of the increase of the range of distribution of the yarns when the cones of yarn are formed upon the bobbins; sixteenth, the variation of the lengt-h of the yarn extending from the cone of yarn on each bobbin to its point, as the bobbin v progressively fills with yarn; seventeenth, the automatic variation of the speed of the bobbins during winding, according to the tension of the yarns; eighteenth, the automatic starting and stopping of the operation of the mechanism for varying the speed of the bobbins during winding; nineteenth, the regulation of the tightness with which the yarn is wound upon the bobbins; twentieth, the automatic liberation of the counter-faller when the faller is brought into action; twenty-iirst, the automatic making fast ot' the counter-faller previous to spinning; twenty-second, the automatic starting and stopping of the mechanism for unwindin g or delivering rovings; twentythird, the automatic delivery and stoppage of delivery of the rovings by the jaws through which they pass to the spindles.

The combinations of instrumentalities which constitute the invention are specified at the close of this specification; and, in order that the construction and operation of these combinations may be fully understood, I will proceed to describe a self-actin g jack embodying all the combinations, the said machine being represented in the accompanying drawings, in which- Figure 1 represents a plan ofthe machine with the carriage run out. Fig. 2 represents aplan of the machine with the carriage run in. Fig. 3 represents a rear elevation of the machine with the carriage run in. Fig. 4L represents a side elevation of the machine with the carriage run in. 4Figs. 5 to 14, inclusive, repre sent transverse sections of the machine, or of parts thereof, at different places, viz: Fig. 5, at the line 5 of Fig. 1, but with carriage run in, Fig. 6. at the line 6 of Fig. 1; Fig. 7, at the line 7Lb of Fig. 1; Fig. 8, at the line 8 of Fig. l; Fig. 9, at theline 9 of Fig. 1; Fig. 10,

at the line 1() of Fig. 1; Figs. 11 and 1.3, at

the line 13 of Fig. 1 5 Fig. 12, at the line l2 of Fig. l; and Fig. 14, at the line 14 of Fig. 1, but looking in the reverse direction to that in which the other sections are viewed.

In the said figures the parts of the machine which are represented are always designated by the same letters; but certain parts of the machine are omitted in each figure, for the purpose of avoiding confusion.

The said machine contains the following essential features of jacks for spinning wool,

viz: First, a frame, A, to support the mechanism for delivering the rovings; second, unwinding mechanism, consisting of a series of drums, only one, B, of which is represented, for imparting motion to the spools C, from which the rovings are delivered for spinning; third, jaws, which, in this machine, are rollerjaws, D Dl D2, for delivering the lengths of the rovings to be drawn and twisted at each operation of the carriage; fourth, a carriage, E, with the spindles F, upon which the bobbins G are mounted, the carriage being provided with a faller, H, and counter-faller H, to direct the yarns to the bobbins.

All of these instrumentalities are the same as those of the ordinary hand-jack; and as a representation of the whole ot' every one of each of these instrumentalities would tend to render the drawings more difcult to be understood, certain portions have been omitted from the drawings.

The operation of these instrumentalities in spinning is the same as with the corresponding instrumcntalities in the common handjack-that is to say, assuming that the earriage is at its innermost position, and ready to move outwardp First, the spindles, with the bobbins upon them, are setin rapid motion, and the carriage is moved out for a certain distance with a uniform speed. At thesame time the unwinding-drums and the roller-jaws are. operated to deliver the lengths of rovin gs to be spun at one operation.

Second, the delivery of rovin gs is stopped by the stopping of the revolution of the unwindingvdrums and of the roller-jaws, while the carriage continues to move outward (for the purpose of drawing or stretching the rovings) with a speed which progressively decreases.

Third, when the carriage, in its outward motion, arrives at nearly the end of its course, it is moved a short distance inward to compensate for the shortening of the yarns by hard twisting, and this slight inward movement is continued until the twisting is completed, when the motion of the spindles is stopped.

Fourth, the mot-ion of the spindles is immediately resumed, but in a reverse direction, and slowly, for the purpose of unwinding the yarns extending from the cones of yarn 011 the bobbins to their points, and at the same time the carriage is caused to run outward to the limit of its outward course, so as to keep the yarns in an extended state previous to winding them. This second outward movement is commonly termed backing oif.

Fifth, the spindles are stopped, and arethen caused to turn again in a forward direction, and slowly, for the purpose of winding up the yarns. At the same time the faller is depressed to carry down the yarns to the masses of yarn or cones formed on the bobbins, and the faller is moved to guide the yarn, so that it is wound in conical form upon the bobbins. Moreover, while the winding takes place, the carriage is caused to run inward to its first position, and the speed of the spindles during winding is regulated by the tension upon the yarns, so that they are not strained during winding.

The above being the general operation of the machine, a description of the means for performing the several operations automatically, according t-o the present invention, will now be given.

Power is imparted to the machine by means of two driving-belts, one of which is applied to the beltpulley of a driving-shaft, J, whose principal otiice is to transmit motion to the carriage, while the other beltis applied to the belt-pulleys of a second driving-shaft, J', whose principal office is to transmit motion to the spindles. The first improvements relate to the movement of the carriage in the proper directions, at the required times, and with the necessary variations in speed.

In order that the carriage E may be moved, it is connected by a rod, K, with an endless chain, L, which is applied to two wheels, M M. rllhe first of these wheels, M, is a sprocketwheel, being fitted with projections, which engagewith the links of the chain and compel `it to move with it.` Theother wheel, M', is

'grooved to `hold the chain, and is" set so far p "from the sprocket-wheel that the distance between the two links of the chain that are farthest apart is equal the length of the course ofthe carriage. Hence, `when that Vlink of the p chain with which the carriage is connected is at the outer side of the sprocket-wheel M, as seen in Fig. 10, the carriage is at its inner'- rnost position, and is ready tobe moved outward. In `order that the carriage may be moved at the required times withthe proper speeds, the sprocket-wheel shaft J2 is operated upon successively by four trains of driving mechanism. One of these drives the sprocket- "wheel withuniformand rapid speed during the delivery of the rovings and the windings up of theyarns; the second drives the sprocketwheel with a progressivelydiminishing speed during the stretching or drawing of the rov-y ings; the third causes` the carriage tofmove.

inward slowly during the hard twisting subsequent `to the stretching,` and the fourth causes the carriage to move slowly outward `during the backing-oft' movement.

The iirst of these mechanisms comprises the ofthe two drivin g-shafts of the jack through the cog-wheel P2 and pinion N2, the last, N2, being secured to the driving-sliaft J, to which a constantly uniform motion is imparted by a `belt applied to the belt-pulley Q. This train f of mechanism drives the sprocket-wheel so long as the pinion Nl gears into the teeth of thesegment-ring Pl. This pinionNl runs out of these teeth at the end a., Fig. 5, of the segment about the period when the delivery of rovings is stopped, and consequently then fceases to drive the carriage, and the pinion remainsout of gear until the main wheel P has been turned suiciently by the other trains of mechanism to bring the other end, al, of the i segment again into gear with the pinion, which operation takes place when the backing-off movement of the carriage is ended, and the carriage is to run inward during winding.

i l The second train of drivin g-mechanism comes Winto operation as the iirst ceases to operate upon the sprocket-wheel shaft. This second train consists of the pinion N, the main wheel P, the cam-plate R, secured to the main shaft J4, or shaft of the main wheel P, the crank-pin b, segmental wheel P3, pinion N3, and the train of wheels P4 P5 P6, which communicate with the counter-shaft J2. The crank-pin b engages in the slot o of the cam-plate R, and therefore causes the cam-plate and the main wheel P to lturn; but as the crank-pin arbor J6 and the main shaft J 4 (to which the cam-plate R is secured) are eccentric to each other, the cranks pin in its revolution varies `its distance from `the main shaft, and consequently the speed with which the cam-plate and the carriage (moved through its intervention) are caused to move varies during the revolution of the crank-pin, being fastest when the crank-pin is nearest the axis of the cam-plate, and progressively decreasing as the crank-pin gradually diverges from that axis 5 moreover, as the form of the cam-slot c affects the speed of revolulution of the main shaft, the variable speed (imparted by the eccentric action of the crankpin upon the `cani-plate) can be modified as desired by changing the form of the cam-slot. This train continues to act upon the sprocketwheel shaft J2, and to move the carriage until the stretching of the rovings is about completed, which takes place a little before the carriage reaches the outer end of its course. At this time this train ceases to act, by reason of the crank-pin b, in its progressive divergence from4 the main shaft, disengaging itself from the cam-slot c, shortly after which the pinion N3 runs out of gear with the segment P3, and the latter is then disengaged from the counter-shaft J 3. The crank-pin then remains at rest until the cam-plate R. is turned sufcieiitly, by the revolution of the main shaft J4 by the other trains of mechanism, to cause the hinder side, d, of the cam-slot to bear against and turn the crank-pin, thereby moving round the segment-wheel P3, so as to bring its teeth into gear with its pinion N,3 just as the pinion `Nl of the first train of mechanism is about running out of gear. 1

In order to hold the crank-pin b and the seginent-wheel P3 in proper positions while the crank-pin is at rest, a spring, d1, is arranged to bear upon the crank-pin b just after the pinion N3 runs out of gear. This spring is of sufficient strength to hold the pin when it is not moved by the driving mechanism, but yields and permits the crank-pin to pass by it when the crank-pin is moved by the action of the rear side of the cam-slot.

` When the crank-pin and cam-plate mechanism ceases to act upon the sprocket-wheel shaft, the carriage, which is then moving outward, tends to continue its outward movement under the strain of the belt which drives the spindles. This tendency is prevented, and the outward movement of the carriage is stopped at the required position, by the action of a pawl, c, which, at the time, is caused to engage with a ratchet-tootl1,e1, Fig. 9, formed upon the hub of a wheel, P7, Figs. l and 3, that is secured to the sprocket-wheel shaft J 2. This pawl forms part of the train of mechanism for causing the carriage to move slightly inward during the hard twisting. It is pivoted to an arm, e2, Fig. 9, which is constructed to vibrate freely upon the sprocket-wheel shaft J2. The end of this pawl-arm projects toward the main 4shaft J 4, and is provided with a projection, c3, which is operated upon by a cam, R', Figs. l and 9. This cam is secured to a tubular shaft, J 7, which is constructed to turn freely upon the main shaft J 4, and is also tted with a cog-wheel, P9, which is arranged at the side ot' the main wheel P, and which, for distinction, will hereafter be called the sisterwheel.

This sister-wheel is carried around with the main wheel in its revolution by means of a radial projection, f, Fig. 8, which is secured to the main wheel, and operates upon a pin, g, projecting from the adjacent side of the sister-wheel; and the pin is set in such relation yto the cam It that when, during the operation of the machine, the pinion N 3 runs out of gear with the segment-wheel P9, and the crank-pin b ceases to transmit motion to the main wheel through the cam-plate It and the main shaft J4, the cam R has just placed the pawl ein the tooth of the hub of the wheel P7, and stops the further outward movement of the carriage. In order that the carriage may thereupon be immediately moved inward, (so as to permit the yarns to shorten up as they are twisted,) the sister-wheel P9 is caused to turn, so as to turn the cam It', thereby moving the pawlarm e9, and compelling the pawl to turn the sprocket-wheel M backward. This turning of the sister-wheel is effected by a pinion, N9, which is mounted loosely upon the'shaft J5 and gears into the sister-wheel P9. This pinio'n is connected with the shaft J5 by means of a ratchet-wheel, I, and pawl i--the former secured to the pinion, and the latter to a hub, i', which is made fast to the shaft J5.

In the machine represented in the drawings, the shaft J 5 runs but about one-quarter as fast as the shaft J9, and the difference between the diameters of the pinion N9 and sister-wheel P9 is greater than that between the diameters of the pinion N 9 and the segmentwheel P9. `Hence, so long as the main wheel is driven by the pinions Nl or N3, the sisterwheel P9 is carried around by the main wheel faster than it could be turned by the pinion N 9; consequently the sister-wheel then drives its pinion N9 faster than the shaft J5 turns, and the ratchet-connection permits the pinion to slip on its shaft. But as soon as the main wheel ceases to be driven by the pinion N 3, the pinion N9 begins to drive the sister-wheel, and causes the inward movement of the carriage during hard twisting, as before set forth. Hence the pinion N9, sister-wheel P9, cam Rf, and pawl c constitute the train of mechanism for moving the carriage, through the endless chain, during hard twisting.

In the preceding` description it has been stated that the proportions of the parts of the machine represented in the drawings are such that so long as the main wheel P is driven by the pinions N1 or N 9, the sister-wheel P9 is carried around by the main wheel faster than it could be turned by the pinion N9. It may, however, happen, in spinning some kinds of yarn, that the proportions of the parts of the machine may be varied, so that the main wheel, toward the termination of its movement by the pinion N 9, will turn slower than the sisterwheel P9 is turned by its pinion N9. In such case that pinion N9 begins to turn the sister- Wheel before the pinion N3 and crank-pin b cease to operate the main wheel P, and the pin g will travel away from the radial projection j'. This premature commencement of movement of the sister-Wheel by its pinion might bring the pawl cinto action too speedily if the pin g be not shifted, so as to permit the cam It to be farther from the arm on which it operates when the pinion N9 begins to drive the sister-wheel.

In order that the outward movement of the carriage may be recommenced after the hard twisting is completed, (for the purpose of keeping the spun yarns extended as the spindles are turned backward to back 0E the yarn extending from the cones of yarn to the points of the bobbins,) a second pin, g', Fig. 8, is applied to the side of the sister-wheel to operate upon the rear side of the radial projection f of the main wheel. This second pin is set in such relative position to the cam It that said pin comes in contact with the radial projection of the main wheel just after that cam It has completed its work. Hence the continued movement ofthe sister-wheel P9 by its pinion N9 causes the main wheel to move with it by the action of the pin gl and projection f, and the main wheel when so moved operates, through the pinion N, the sprocket-wheel, and the endless chain, to move the spindle-carriage outward during the turning of the spindles backward for the purpose of backing oif the yarns. Y Y

The continued movement of the main wheel by the sister-wheel carries the rst tooth of the segment P1 into gear with the drivingpinion N1 at about the time the carriage arrives at its outmost position, so that at that time the said pinion N l recommences driving the main wheel and imparting a forward motion through it to the sprocket-wheel M and to the endless chain L, so as to impel the carriage. This recommen cement of movement by the main wheel takes place when the carriage is about at the outer end of its course, so that the carriage is then caused to run inward, for the purpose of winding the yarns which have been spilli during its outward movement.

As soon as the driving-pinion N1 begins to operate, the main Wheel is driven faster than thel sister-wheel`could be by its pinion N9; hence the radial projection f of the main wheel leaves the pin g1, and gradually closes up the space between it and the irst pin, g, until the said projection comes in contact with said pin, whereupon the sister-wheel is caused by the said projection to move round simultaneously with the main wheel P until the pinion N3 ceases to transmit motion to it, as before described.

In jack and mule spinning it is desirable that the period during which the hard twisting of the yarns is effected should be capable of variation, so that the yarns may be twisted softer or harder, as required.

In the machine represented in the drawings the place to which the carriage is caused to run inward, by the operation of the pawl e and its connections,is always the same,unless the form of the cam It be changed, and consequently the position occupied by the carriage at the time hard twisting terminates is not varied. i

In order, therefore, that the time during which the hard twisting is effected may be varied, provision is made for stopping the outward movement of the carriage when it has attained a greater or a lesser distance from the roller-jaws, so that the distance which the carriage must be moved, and the space of time required to move it inward from that variable position 'to the position at which the hard twisting terminates, as above stated, are increased or diminished, and consequently the yarn is twisted for a longer or shorter time and more or less hard. To this end a number of pin-holes is formed in the sister-wheel P9, (see Fig. 8,) so that the pin g may be shifted from one to another, to vary the relation which the cam R bears to the sprocket-wheel shaft J2 at the time the crank-pin b ceases to transmit motion tothe sprocket-wheel shaft, and. consequently to vary the position of the pawl e relatively to the tooth el at that time, the pawl being then at a greater distance from the tooth el when the pin g is set farther from the pin gl, and the cam It is less advanced, and the pawl being at a less distance from the tooth el when the pin g is set nearer to the pin gl.

The farther the pawl e is from the tooth el at the time the crank-pin b ceases to transmit motion to the sprocket-wheel, the farther will the sprocket-wheel shaft, the sprocket-wheel,

and the endless chain be permitted to move before the pawl stops their movement, and consequently the carriage connected with the endless chain will be moved under the strain of the belt which drives the spindles to a greater distance from the fixed point to which it will afterward be moved inward at the time hard twisting terminates, and the twisting -will be continued for a longer period. The

pawl e is prevented' from acting upon the tooth of the hub of the wheel Pl at an improper time by a guard, h. When the camv R' in its revolution passes by the pawl-arm e2 the weight of the outer end of that arm causes it to turn downward and draw back Ythe pawl over the guard-plate It, so that the pawl cannot then stop the revolution of the shaft J 2; but when the pawl is moved forward by the action of the cam upon its arm, the pawl is permitted to approach the hub of the wheel Pl by dropping in the notch in the guard h.

As the ratchet-wheel I, the crank-pin b, and the pinion Nl` are all connected by cog-wheels, so that they maintain a Xed relationship to each other, it is expedient, in order that the machine may operate properly, f that one or other of two particular teeth of the drivingpinion Nl shall run into gear `with the first tooth of the segment Pl when that segment is to begin to'work. This result is accomplished by constructing an enlarged tooth, s, upon the side of the segment-teeth Pl at the point of engagement a, and by constructing two supplementary teeth, sl s', upon the hub of the pinion Nl adjacent td the two particular teeth above referred to,- so that one or other of the supplementary teeth of the pinion may engage with the supplementary tooth upon the segment, and thus cause the engagement of the corresponding tooth of the pinion with the iirst tooth of thesegment.

The spindles F, which are mounted upon the carriage E, are driven in a forward direction (or that required for spinning and twisting) in the usual way, by connecting the whirl S, Fig. 5, of each spindle with a long drum, Sl, by means of an endless cord. .The long drum is caused to revolve by means of an endless belt, T, which traverses the drum, and two belt-pulleys, Q2 Ql, the former secured to the floor of the building beyond the outermost position of the carriage, and the latter, Ql, secured to the second driving-shaft, Jl, of the machine. This driving-shaft is fitted with a fast belt-pulley, Q3, upon which the drivingbelt runs when the shaft is to be driven, and with a loose belt-pulley, Q4, to which the driving-belt is transferred when the spindles are not to be turned forward.

In order to transfer the belt automatically from one pulley to the other,as required, during the operation of the machine, a belt-shipper, U, Fig. 3, is provided. A spring, Ul, also is provided to move the belt-shipper from the fast pulley Ql to the loose pulley Q4, and to hold the belt upon the latter until the beltshipper is moved back to the fast pulley.

ln order that the belt-shipper may be thus moved it is connected by two arms, j jl, Fig. 3, and a rod, jz, Figs. 8 and 10, with a rockshaft, J 8, and this rock-shaft is provided with a second arm, js, Figs. 1, 3, and l0, which projects within the range of revolutionof a pin, g2, that projects laterally from the side of wheel P10, which is secured to the shaft Jf of the main wheel P. This pin is so set relatively Y to the segment Pl of the main wheel that the pin g2 operates upon the arm ja, and, moving the belt-shipper, shifts the belt to the fast pulley Qll, thus starting the spindles into rapid revolution just as the carriage commences its outward movement. The belt is held in this position until the hard twisting is completed by the engagement of a second arm, j, Figs. 1 and 9, of the rock-shaft Jl with a springcatch, 9", Fig. 9. This spring-catch j5 has an arm, jfl, projecting from its side within the range of a pin, g3, (represented in dotted lines in Fig. 9,) that is secured to and revolves with the shaft JI of the sister-wheel I, and this arm is so set upon said shaft that it acts upon the arm js of the catch 4and trips the catch when the hard twisting is completed. The tripping of the catch releases the belt-shipper and permits the spring Ul to move it, and thereby move the belt to the loose pulley Q4,

whereupon the rapid forward movement of the spindle ceases.

In order that the time at which the beltshipper is moved by the spring U1 may be adjusted with facility, the pin g3 is not secured directly to the shaft J 7, but is applied to a collar, c, which can be turned upon the said shaf't, and is secured thereto by a set-screw.

In order to turn the spindles backward, so as to back off the yarns, the driving-shaft J1 of the spindles is turned backward by a motion derived from the driving-shaft J, which operates the mechanism for moving the carriage E. For this purpose an arm, k, Figs. l and 9, is secured to the shaft J7 of the sisterwheel P9, and is arranged to operate upon the driving-shaft J1 through the intervention of a lever, O, (which is pivoted to one of the standards of the frame, and is provided at one end with a segment, P11,) a vibratable segment, P12, (which is mounted upon the driving-shaft J1, and gears into the segment P11 of the lever 0,) a pawl, c5, and a ratchet-wheel, I1. The ratchet-wheel I1 is secured to the drivin g-shaft J1, and the pawl is pivoted to an arm projecting from the segment P12. The arrangement of these instrumentalitiesis such that the revolution of the sister-wheel P9 by the driving-shaft J, through the intervention of the wheels N2 P2 PG P5 P1 N9, causes the arm k to bear upon the lever O and to move the pawl, so that it operates upon the ratchet-wheel I1, and turns the driving-shaft J1 backward (so as to turn the spindles backward) at the time backing oif is required. g

The position at which the pawl c6 is permitted to engage with the ratchet-wheel is determined by a guard-plate, h1, which is supported at the side of the ratchet-wheel, and is cut away to permit the pawl to engage at the proper time.

When the arm k passes by the shank of the lever O the backward motion of the spindles ceases, and the preponderating weight of the segment P11 (of the lever O) restores the lever ahdvsegment P12, with the pawl c, to their first positions. In moving to these positions the pawl c6 is carried backward over the rim of the guard-plate h1, and the point of the pawl is thereby disengaged from the ratchet-wheel I1, so that this mechanism for turning the spindles backward does not interfere with the free turning of the ratchet-wheel with the driving-sh aft J 1 when the last is driven in the forward direction by the drivin g-belt.

The spindles are caused to turn Jforward for the purpose of winding up the yarns, and with the comparatively slow speed then required, by

the following means: A cog-wheel,P1, is sev cured to the ,sprocket-shaft J2, and a corresponding cog-wheel, P2, is so mounted upon the driving-shaft J1 of the spindles as to turn loosely thereon. To this second wheel a beveled wheel, P12, is secured, which forms apart ol' the differential gear P13 P14 P11 P15, the beveled pinions P11 P11 being` pivoted upon arbors carried by the frame V, which is tted to turn upon the driving-shaft J1, and the hub of the beveled wheel P15 being fitted to turn freely upon that driving shaft. This hub has a ratchet-wheel, I2, Fig. 6, secured to it, and this ratchet-wheel is surrounded by a case, l, which is made fast to the driving-shaft J1, and contains three pawls, c1 61 c1, Fig. 6, to engage with the teeth of the ratchet-wheel. The operation of this winding mechanism is to turn the drivin g-shaft J 1 in the proper direction for driving the spindles forward by a motion derived from the main shaft J 1 5 but as this mechanism tends to drive the shaft J1 at a much slower' speed than is imparted to it by the driving-belt which is controlled by the belt-shipper U, the ratchet-wheel I2 moves round freely within the pawls c1 so long as the driving-belt is driving the shaft J1, to which the ratchet -wheel is secured. \Vhen, how. ever, the belt is transferred to the loose pulley Q1,the driving-shaft J1 is left free to be turned by the winding mechanism whenever the sprocket-wheel shaft J 11 is turned.

One object of using the differential gear with the turning gear-frame V is to permit the dri ving-shaft J1 to be turned backward during backing off without disarranging the winding mechanism. To this end the turning gearframe V is permitted to move a regulated eX- tent, and a stop, m, is provided to determine that extent. The turning gear-frameis stopped at the time the spindles are being turned forward for spinning by a pin, g4, Fig. 5, which projects from it and comes in contact with the stop m, so that the frame, during spinning, stands as represented in Figs. 3,4, and 5. The turning of the driving-shaft J1 backward during backing off causes the pawls c1 (connected with said shaftby the case l) to operate through the ratchet-wheel I2 upon wheels P15 P11 P14, and to tend to turn the wheels P11 P8 P1; but as the turning gear-frame V is free to move backward, (in the direction indicated by the arrow q in Fig. 5,) this frame moves and prevents the breakage of the gearin that would otherwise ensue.

The turning of the winding mechanism tends to move the turning gear-frameV in the same direction as it is moved during backing oii", and consequently if the turning were not pre vented at this time the frame would turn upon the drivin g-shaft J1, and no motion would be ilnparted to the spindles. In order, therefore, to hold the turning gear-frame stationary during winding, a projection, g5, is arranged upon it to come in contact with the stop m at that time, and thus hold the turning gear-frame stationary during winding.

When winding is completed, and the beltshipper U throws the driving-belt again upon the fast pulley Q3, the turning of the drivingshaft J1 carries the turning gear-frame along with it (in the opposite direction of the arrow q, Fig. 5) until the pin g4 comes in contact with the stop m, and then the parts ofthe winding mechanism remain in their normal positions until winding is again to be performed.

In order to insure the return of the turning p gear-frame to the position it should occupy during spinning, a weight, W, is provided,

a and is connected with the frame V through a cord, a, passing over pulleys;

In order to distribute the yarn upon the bobbins during winding, the faller H is operated f, automatically by the means nowto be described.'

The faller H is connected by arms t t with a rock-shaft, X, with which a weight, W2, is connected, so as to tend to hold the faller ,in the raised position which it occupies during spinning. The rock-shaftX has a pulley, Q5, secured to it, which is connected by a chain, al,

" fwith one arm, tl, of a bent lever, Y, which is constructed to vibrate upon said carriage.

` This vibrating arm t is connected by a pin, b3,

with the outer end of a leg-lever, Y1, which is pivoted to the carriage, and is provided at its inner end with a hinged leg, Y2. The leg has a lug, a2, at one of its sides, and a hooked stop,

c2, is provided to engage with said lug and hold the leg in an erect position when'it is placed therein, and the carriage is moved inward. The lower end of the leg is provided with a wheel, d2, which is constructed to run u pon a track, Z, that extends beneath the carrlage.

`While the carriage is running outward, the

` parts thus described occupy the positions in p i which they are represented at Fig. 12, the leg Y2being then bent; but as the carriage, during the last of the backing-off movement, approaches the outer end of its course, thelower arm, t2, of the lbent lever Y comes in contact with a stationary stud, B2; and as this arm is thereby arrested, while the carriage continues to move outward, the bent lever is caused to i -turn on its pivot, its vibrating arm t1 is depressed to draw the faller H down upon the yarns, the leg-lever Y1 is rocked upon its pivot,

p f and the leg Y2 is raised to an erect position, as y seen at Fig. 13, in which position it is caught V and retained `by the hooked stop c2. The vibrating arm t and the faller connected with 'it are thus put under the control of the track Z, upon which the leg Y2 bears, and the subse- 'quent movement of the carriage inward causes 'the leg Y2 to traverse the track Z, which isA so inclined as to lirst cause the leg to depress the faller to the base of the cone of yarn' upon each bobbin, and then to permit the ascent of the 'faller progressively to the point of the cone. When the carriage arrives at its innermost position the leg Y2 is released from the hooked stop c2, and is permitted to reassume its bent position (thereby permitting the faller to be `raised by the weight W2) by the action of an incline, Z, upon an arm, t3, which is pivoted `to the slide a of the bent lever Y, and is connearer their points than at the last preceding winding operation.

In order that the movement of the faller may be varied automatically for this purpose the faller-chain al is not secured directly to the vibrating arm tl, but is passed partly :round a pulley, rl, at the end of the arm t1, and is fastened to a sliding nut, u, which is traversed by a screw, m2, that is secured to and carried by the vibrating arm t1. The head of this screw m1 is fitted with a ratchet-wheel, I3, and a pawl, e8, for the said ratchet-wheel is pivoted to a bent lever, t4, which is constructed to vibrate upon the stem of the screw; moreover,

a movable stud, g4, is secured to the carriage within the range of vibration of the shank of the said bent lever as it is moved up and down. Hence, whenever the vibrating arm t1 is depressed the pawl-lever t4 is turned, and the pawl is caused to act upon the ratchetwheel and to turn the screw partially, thus shifting the sliding nut a, which is the fastening of the chain al, nearer the pulley r1, thereby lengthening the eftectivelength ofthe chainconnection between the end of the vibrating arm t1 and the faller, and depressing the faller a less distance at each" successive operation.

When, on the other hand, the vibrating arih t1 is raised,the pawl-lever I3 is permitted to turn backward by reason of the preponderaty ing weight of its shank, and the pawl is shifted to a new position on the ratchet-wheel.

The head of the shiftin g-screw m1 is provided with a crank-handle, p3, so that it may be screwed backward by hand to set the faller H in the proper position for operating upon the yarns when an empty set of bobbins is applied to the spindles.

The heads of the bobbins commonly used upon jacks have curved shoulders, as seen at h2, Fig. 5. Hence, when the winding of yarn is commenced upon such bobbins the range of vibration of the faller must be small, and the range must be progressively increased, so as to direct the yarns progressively lower and lower upon the bobbins, as well as higher, until the cones of yarn at the heads of the bobbins are properly formed, the yarn on each bobbin being distributed in layers, as indicated in section by the red lines in Fig. 5.

In order that the extent of vibration of the faller may be progressively and automatically increased by the machine represented in the drawings, a means is provided of shifting the pivot of the leg -lever Y1 progressively toward its inner end, at which the leg is pivoted, so as to vary the ratio of its two arms, and thus increase the vibration of the vibrating arm tl, and consequently increase the vibration of the faller, which is moved by that vibrating arm at each successive course of the carriage until the cone of yarn is properly formed at the head of each bobbin. In order to shift the pivot of the leg-lever Yx in this manner, it is connected with a slide, u', which is arranged to slide transversely to the length of the carriage in a guide, w, and is traversed by a screw, m2, Figs. 1 and 14, whose head is fitted with aratchet-wheel, I4. This ratchet-wheel is operated by a pawl, e9, which is pivoted to a lever, t5, that is constructed to oseillate freely upon the stein of the screw m2. One arm of this pawl-lever is within the range of vibration of the vibrating arin t1, so that at the rising vibration thereof the pawl c1 is caused to vibrate, and the screw m2 is thereby partly turned to move the pivot of the leg-lever Y1 inward, while at the descending vibration of the arm t1 the pawl-lever is permitted to carry the pawl backward over the ratchet-teeth by reason of the pieponderating weight of the arm of the pawl-lever to which the pawl is pivoted, so that the pawl is put into position to turn the screw at the next rising vibration of the vibrating arm t1.

In order that the movement of the pivot of the leg-lever Y1 may be stopped when the cone of yarn is properly formed at the head of the bobbin, at which time the vibration of the -faller has attained its maximum extent, a

guard, t, is secured to the side of the slide u', so as to be carried by it over the arm :v of the pawl-lever t5. This guard has two grades, :v1 and x2, (see Fig. 14,) the former being beyond the range of vibration of the armv x of the pawl-lever, so that while this grade is passing the pawl-lever it ispermitted to oscillate, and the movement of the pivot by the vibration of the pawl and the turning of the pivot-screw m2 proceeds.

The other grade, m2, of the guard is of sufficient extent to prevent the pawl-lever t5 from vibrating; and when, by the movement of the slide u', the pivot of the leg-leverY1 reaches the most inward position required, this grade :v2 of the guard is brought over .the arin w of the pawl-lever, so as to stop the vibration of the pawl-lever, and, consequently, the further turning of the screw and the further movenient of the pivot of the leg-lever Y1. When this stoppage takes place, the variation of the position which the faller occupies during its operation is under the control of the shiftingscrew m1 alone until the bobbins are filled with yarns. In order that the pivot of the leg-lever Y1 may be set in the proper position for commencing winding upon an empty set of bobbiiis, the head of the pivot-screw m2 is fitted with a crank-handle, p4, so that it can be turned by hand for that purpose, the pawl c1' being then thrown out of gear with the ratchet -wheel I4.

Vhen the yarn is wound nearest the head of a bobbin the distance between the top of the cone of yarn and the point of the spindle is greatest, and this distance progressively diminishes as the bobbin fills with yarn; hence, the amount of yarn extended from the top of the cone to the point of the bobbiii must be progressively decreased at each operation of the spindle-carriage, and the faller must be permitted tb rise (after winding) progressively later at each said operation. In order to produce this effect, the pivot of the arni t3 is not fixed to the carriage, but is connected with the slide u, and is moved with it, so that at every successive inward movement of the carriage the arm t3 is brought in contact with the ineline Z at a later period, and consequently the faller is permitted to rise at a later period.

The operation of the winding mechanism is to turn the spindles with uniform speed during winding. As, however, the diameter of the cones of yarn upon the bobbins varies during winding, a uniform speed of the spindles sufficiently rapid to wind the yarn near the body lof a bobhin would cause the straining or the breakage of the yarn while it was being wound near the base of the cone of yarn. To obviate such straining or breakage the machine is provided with a means of retarding the speed ofthe spindles during winding, according to the strain or tension of the yarns. '11o this end the carriage E is provided with a frictionbrake, S2, Figs. 1 and l0, to bear against the drum S1,which drives the spindles, and to retard its motion during winding. The frictionbrake is connected by a chain, n2, with an arm, y1, projecting from a rock-shaft, X1, from which shaft also project the arms y2 y2 that hold the counter-faller H', across which the yarns pass. The end of the chain, after passing over a pulley, QG, upon the arm y1 of the rock-shaft, is made fast to an arm, g3, projecting from a rock-shaft, X2, arranged beneath the carriage, and the chain is long enough to permit the friction-brake S2 to lie back (by its own weight) from the drum S1, while the chainarm is horizontal, or thereabout.

In order to tauten the chain and thereby draw the friction-brake against the drum, the rock-shaft is tted with a second arm, 3/4, which projects within the range of vibration of a stud, B1, projecting from the side of the leg-lever Y1. Hence, when that leg-lever Y1 hangs down, as it does during the outward movement of the carriage while the spindles are being driven rapidly for twisting, the brake-cliain n2 is slacked, and the frictionbrake lies clear from the drinn S1 5 but when the leg-lever Y1 is raised, as before stated, for the purpose of depressing the faller H during the winding of the yarns, the stud B4, operating upon the arm fi/1 of the rock-shaft X2, depi'esses the chain-arm 1/3, thereby tightening thechain a1 and bringing the friction-brake S2 into operation upon the drum S1 and under the control of the counter-faller H. Thereupon the pressure of the yarns extending from the rollerjaws to the bobbiiis across the counter-faller H presses the friction-brake S2 with greater or lesser force against the drum S1, according to the tension of said yarns, thereby retardiiig the revolution of the drum S1 (and, consequently, of the spindles and bobbiiis driven by it) when the tension on the yarns increases, and relaxing it as the tension decreases.

In order that the pressure of the brake upy on the drum may be relaxed with certainty as the tension upon the yarns decreases, springs z z are applied to arms g5 1/5, Fig. 1, projecting from the rock shaft X1 of the counter-faller, opposite to the arms of the counter-faller, so thatthe counter-faller is under the action of two antagonistic forces-viz., that of the `sprin gs z z, tending to raise it, and that of the a ing from the driving-shaft J1, tends to drive it at a uniform speed. In order th at the drum and the driving-shaft J1 may be permitted to turn as slowly as required under the circumstances, the turning gear frame V is made in two parts, one of which, P, holds the arbors of the y pinions P1A1 P14, While the other, p1, holds the the pin g4 and projection g5, and has the form of a friction-band, being secured to the first part, p, `only by frictional contact with the friction-blocks p2 p2, which are inserted be-.

g tween the two; hence the interior part, p, can i turn within the exterior part, p1, whenever the `shaft J1 is retarded by the action of the fric- `friction-brake upon the drum S1.

In the winding mechanism which has been described, the tightness with which the yarn is wound depends upon the resistance which the frictionblocks or the band p1 offer to the retardation of the shaft J1; and in order that thismay be varied as required,`the exterior part, p1, of the frame is constructed as a friction-band, which can be tightened or slacked by screwing or unscrewing screws 1911, which connect the two ends of the band. sa Instead of constructing the frame Vin two parts, it may be made of one piece, provided the weight W be made heavy enough to insure the winding of the yarn with the required tension, and the stop m and projections g1 g5 be not used, so that the turning gear-frame may turn and wind up the weight. In this case the exterior of the turning gear-frame should have a helical groove formed upon it, or should have lange-s applied to it, to keep the weight-cord from running off. Then the cord would extend radially from its point of fastening on the turning gear-frame to the first pulley, Iover which it passes during-the stretching and hard twisting; but, during backing oif 'and winding, the weight would be wound up by the revolution ofthe turning gear-frame. 'When, however, the driving shaft J1 4was turned by the driving-belt, the turning gearframe would be turned backward, and the lweight would be lowered.V In this case the weight wouldoffer the `resistance required to insure the winding of the yarns with the requisite tightness, and it would be varied to vary that tightness.

In the present example the diiferential gear lis arranged in connection with the stationary- 'frame ofthe machine; but it maybe arranged upon the spindle-carriage, and connected directly with the drum S1, through which the spindles are driven.

The counter-faller II is held stationary near the points of the spindles during the outward movement of theearriage by means "of a hook, s2, Fig. 1, and represented in dotted lines in Fig. 4, which is at that time engaged with a pin, Lprojecting from one of the arms y1 of the counter-faller, and consequently the counter-faller then operates to guide the yarns to the points of the spindles. This hook 4s2 is connected by a chain with an arm, g/G, secured to the' rock-shaft X of the faller H, so that when the faller is depressed for the purpose of guiding the yarns during winding, the hook s2 is thereby disengaged from the pin s3, and the counter-faller is liberated and permitted to vibrate, as before described.

When the winding is completed it is expedient to secure the counter-faller in the position which it occupies near the points of the spindles during the outward movement of the carriage. To this end the rock-shaft X1 of the counterfaller H is fltted with an arm, y1, Figs. l and 4, which projectsV upward and backward from the said rock-shaft, while the counter-faller is free to vibrate, and which, during the lastportion of the inward movement of the carriage, is thereby forced under the rail 7a2, Figs. 2 and 3, that carries the roller-j aws, and is thereby depressed, so as to depress the counter-faller and its arms y2 y2 until the hook s2 re-engages with the pin s3. This downward movement of the counter-faller is permitted at the time because the disengagement of the hooked stop c2 from the leg Y2 at this time, and the consequent descent of the leg-lever Y1, asmbefore described, releases the chain-arm Y3` and slacks the chain n2, while the 1re-engagement of the hook s2 with the arm of the counter-faller is permitted by the rise of the fallervincident to the upward vibration of the vibrating lever t1 at this time, asbefore set forth.

The mechanism for unwinding the roviugs from the spools C, and for delivering the rovings, must operate intermittently, the movement of these mechanisms commencing when the carriage begins to moveoutward, and ceasing when a sufficient length of rovlngs has been delivered for one spinning operation. To this end the unwinding-drums B (upon which the spools C are laid during the operation of the machine, and by which they are turned) and the roller-jaws D D1 are connected by the cog-wheelsf2f3f1f5f3 and the beveled wheels f1 f8 with a shaft, X4. This shaft is fitted with a clutch, TZ, Fig. 2,' which slides longitudinally upon it, and is connectedwith it by a feather and groove. The shaft is also fitted with a beveled wheel, ff, which turns freely upon it, and has its hub z3 toothed, to engage with the teeth of the clutch T2, which lis pressed toward that hub by a spring, x3.

The beveled wheelj'9 engages with a second beveled wheel, f10, which is secured to a shaft, X5, and this shaft is caused to revolve by a belt, U9, Fig. 3and belt-pulleys Q9 Q9, the last of which, Q9, is secured to the second driving-shaft, J1, ofthe machine.

The clutch T9 is fitted with a clutch-lever, L3, one of whose arms projects upward from the-rock-shaft I, while its other arm, d1, Fig. 10, projects downward from that rock-shaft I8 within the range of revolution of a series of pins, [/9 g, which projects radially from the rim of a pin-wheel, P19. This pin-wheel is secured to the main shaft J4, and is turned by it, and its rim is perforated with many pinholes, so that the pins may be set to project from the pin-wheel in any desired positions.

rlhe arrangement of the clutch, clutch-lcver, and pin-wheel is such that when the lower arm of the clutch-lever is not pressed by any pin the spring' w3 can engage the clutch T9 with the hub of the wheel f9, while if the clutch be engaged the pressure of a pin, g, (of the pin-wheel P19) upon the clutch-lever L3 causes the disengagement of the clutch, and holds it out of engagement so long as the pin presses against the lower curved arm, d4, of that clutchlever. When the clutch is engaged the roller-jaws and the unwinding-drums are connected with the second -driving-shaft, J1, and are put in motion by it 5 and when the clutch is disengaged the` roller-jaws and unwindingdrums are disconnected from the said drivingshaft, and consequently cease to deliver rovings.

In adjusting the machine for use a pin, gG, is placed in the pin-wheel P19, in the proper position to bear against the clutch-lever L9, and thereby disengage the clutch when the carriage (which receives motion through the same main shaft) has reached that point in its outward movement at which the delivery of rovings is to be stopped; and a sufficient number of additional pins, 97, is inserted in the wheel to bear in succession against the clutch-lever, and hold the clutch disengaged until the driving-shaft J1 is stopped by the shifting of its driving-belt by the movement of the belt-shipper U. As the turning of the pin-wheel P19 with the main shaft J 1 continues after the second driving-shaft, J1, is stopped, the last pin g1, which bears against the clutchlever L9, is moved past the clutch-lever in the interval between the stopping and restarting of the second driving-shaft, J1, which drives the spindles, and consequently the clutch is engaged, and the delivery of rovings commences when the second drivin g-shaft is started into motion for each operation of the carriage.

In practice it has been found expedient to proportion the parts of the machine as follows: The pinion N has twenty teeth. The main wheel l) has one hundred teeth. The pinion N1 has fourteen teeth. The sister-wheel 119 has ninety-eight teeth. The pinion N9 has fourteen teeth. The segment P1 has seventytwo teeth. The segmentP-lhas forty-one teeth. The pinion 'N9 has twenty-four teeth. The ratchet-wheel I has eight teeth.

The teeth ofthe wheel P4, P9, and pinion P9 are so proportioned that the shaft J5 makes onequarter ofthe number of revolutions ofthe shaft J 9 of the pinion N1. lheI main shaft J 1 makes one complete revolution for each complete operation of the spindle-carriage. The sisterwheel P9 also makes one complete revolution for each operation of said carriage. The angular distances or spaces between the centers of the pin-holes of the sister-wheel correspond with the angular distances of the ratchet-teeth of the ratchet-wheel I, cach space of the former corresponding with one tooth of the latter.

The sprocket-wheel is of sufficient diameter to effect a complete yround movement of the chain by five revolutions of that wheel.

Having thus described a self-acting jack embodying all my im provemcnts, what I claim as my invention, and desire to secure by Letters Patent, is-

l. The combination of the carriage for the spindles with the endless chain, the segmentwheel, and the pinion, for transmitting a uniform motion to the carriage during the delivery of rovings and during the winding of the yarns, and for automatically ceasing to operate the carriage when it is to be operated by other mechanism, the whole constructed to operate substantially as hereinbefore set forth.

2. Also7 the combination of the spindle-carriage with the endless chain, the cam-plate, and the crank-pin revolving eecentrically to the cam-plate, for transmittin ga progressivelydecreasing speed of motion to the carriage during the stretching of the rovin gs, the whole construct-ed to operate substantially as before set forth.

3. Also, the combination of the spindle-carriage with the endless chain and thepawl for stopping the movement of the carriage when the stretching of the rovings is completed, the whole constructed to operate substantially as before set forth.

4. Also, the combination of the spindle-carriage with the endless chain, sister-wheel, pinion, cam, and pawl, for moving the carriage inward during the hard twisting of the yarns, the whole constructed to operate substantially as before set forth.

5. Also, the combination of the spindle-carriage with the endless chain, main wheel, sister-wheel, and pins, for the purpose of placing the carriage under the control of the train of mechanism for operating it during the winding of the yarns, the whole constructed to operate substantially as before set forth.

6. Also, the combination of the spindlecar riage, the endless chain, and the pawl with the mechanism for varying the position of the pawl at the time it stops the movement of the carriage, the whole constructed to operate substantially as before set forth.

7. Also, the combination of the driving-shaft of the spindles with the belt-shipper, springcatch, and main shaft, in such manner that the forward motion of the spindles is stopped when the hard twist-in g is completed, the whole constructed to operate substantially as before set forth. p

8. Also, the combination ofthe drivingshaft of the spindles With the driving-shaft of the spindle-carriage through the intervention of the ratchet-Wheel, pawl, and arm, in such mannerthat the spindles are caused to turn backward, for thepurpose of backing off the lyarns, the Whole constructed to operate substantially as before set forth.

9. Also, the combination ofthe driving-shaft of the spindles With the sprocket-Wheel shaft, ratchet-Wheel, and pawl, for the purpose of driving the spindles during the Windin g of the yarns, the Whole constructed to operate substantially as before set forth.

10. Also, the combination of the drum which imparts motion to the spindles with the turning gear-frame, the Whole constructed to op-v erate substantially as before set forth.

l1. Also, the combination of the drivingshaft of the spindles with the turning gearframe and the Weight which is connected therewith, the Whole constructed to operate substantially as before set forth.

12. Also, the combination of the faller with the vibratin g arm, the leg, and the track, for the purpose of operating the faller during the winding of the yarn, the Whole constructed to operate substantially as before set forth.

13. Also, the combination of the faller, the vibrating arm, the leg, and the track with the stop forholding the leg erect, and With the incline for releasing the stop from the leg when the winding of the yarns is completed, the Whole constructed to operate substantially as before set forth.

14. Also, the combination of the faller, the vibrating arm, the leg, and the track with the shifting-screw, for varying the length of the connection with the faller, so that the place of operation of the faller is varied progressivelyV from the heads of the spindles toward their points, the whole constructed to operatev substantially as before set forth.

15. Also, the combination of the faller, the vibrating arm, the leg, and the leg-lever with the pivot-screw for shifting the pivot of the leg-lever, so as to increase the vibration ofthe faller, the Whole constructed to operate substantially as before set forth.

16. Also, the combination of the faller, the vibratin g arm, the leg lever, and the pivot screw With the guard for stopping the movenient of the pivot-screvsr When the vibration of the faller has attained the required extent, the Whole constructed to operate substantially as before set forth.

17 Also, the combination of the faller, the vibrating arm, the leg, and the stop for holding the leg erect with the arm for disengaging the stop andthe screw for moving said arm, so as to vary the period of disengagement, the Whole constructed to operate substantially as before set forth.

18. Also, the combination of the counterfaller, the drum for driving' the spindles, and the friction-brake for modifying the speed of that drum, the Whole constructed and operating substantially as before set forth.

19. Also, the combination of the counterfaller, the friction-brake, and the arm for tightening and slacking the connection between the counter-faller and the friction-brake, so as to put the friction-brake into operation and out of operation, as required, the Whole constructed to operate substantially as before set forth.

20. Also, the combination of the drum that imparts motion to the spindles, the drivingshaft for driving them, and the turning gearframe With the means of varying the resistance to the movement of the turning gearframe, the Whole constructed to operate substantially as before set forth.

21. Also, the combination of the counterfaller, the faller, the hook for holding the counter-faller, and the connection between the counter-faller and the faller, the whole construoted to operate substantially as before set forth.

22. Also, the combination of the unwindingdrums, the driving-shaft of the spindles, the main shaft, and the clutch, by means subst-antially as described, so that the unwinding of rovings stops when the carriage has reached the place at which the delivery of rovings is to be stopped, the'Whole constructed to operate substantially as before set forth.'

23. Also, the combination of the roller-jaws,

the driving-shaft of the spindles, the main shaft, and the clutch, by means substantially as described, so that the delivery of rovings is stopped When the length required for one operation of the spindles has been delivered, the Whole constructed to operate substantially as before set forth.

In testimony whereof I have hereto set my hand this 4th day of March, A. D. 1869.

GEO. W. Dnvins, Nrons. S. WINGKLER. 

